Which sentence demonstrates correct subject-verb agreement?

A. The students write essays.

B. The students writes essays.

C. The students writing essays.

D. The students has written essays.

Question

Which sentence demonstrates correct subject-verb agreement?

A. The students write essays.

B. The students writes essays.

C. The students writing essays.

D. The students has written essays.

BlackTom AI · Accepted Answer

Subject-verb agreement requires that a plural subject pair with a plural verb form and a singular subject pair with a singular verb form. For present-tense verbs in English, third-person singular adds -s (writes, has) while plural subjects use the base form (write, have).

1. Relevant knowledge points and concepts
- Subject-verb agreement: the verb must agree in number (singular/plural) with its subject.
- Present simple conjugation: I/you/we/they write; he/she/it writes.
- Present perfect: I/you/we/they have written; he/she/it has written.
- A participle alone (writing) is not a complete finite verb and can make a sentence fragment if no auxiliary or main verb is present.

2. Step-by-step reasoning
- Identify the subject in each sentence: "The students" is plural (more than one student).
- Determine the correct verb form for a plural subject:
  - Present simple: use base form "write" (they write).
  - Present perfect: use "have written" (they have written).
- Compare each option against these rules.

3. Intermediate steps / verb conjugation examples
- Present simple: they → write (not writes).
- Present perfect: they → have written (not has written).
- Present participle: writing needs an auxiliary or completes a clause (e.g., "The students are writing essays.").

4. Why the correct answer is correct
- Option A: "The students write essays." uses the plural subject "The students" with the base verb "write," which correctly matches plural agreement for present simple.

5. Why the other options are incorrect
- B: "The students writes essays." incorrectly uses "writes" (third-person singular) with a plural subject.
- C: "The students writing essays." is a fragment; "writing" is a participle and there is no finite verb (it would be correct as "The students are writing essays.").
- D: "The students has written essays." uses "has" (third-person singular present perfect) with a plural subject; the correct form would be "have written."

6. Conclusion
Option A is the only sentence that correctly matches the plural subject with the plural verb form, so the correct answer is A. This matches the provided answer: A. The students write essays.

Which sentence demonstrates correct subject-verb agreement? A. The students write essays. B. The students writes essays. C. The students writing essays. D. The students has written essays.单项选择题

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